SOLUTION: A survey of 30 adults found that the mean age of a person’s primary vehicle is 5.6 years. Assuming the standard deviation of the population is .8 years, find the 95% confidence int
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Question 449562: A survey of 30 adults found that the mean age of a person’s primary vehicle is 5.6 years. Assuming the standard deviation of the population is .8 years, find the 95% confidence interval of the population mean.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A survey of 30 adults found that the mean age of a person’s primary vehicle is 5.6 years. Assuming the standard deviation of the population is .8 years, find the 95% confidence interval of the population mean.
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x-bar = 5.6 yrs
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ME = 1.96 = 0.2863
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95% CI: 5.6-0.2863 < u < 5.6+0.2863
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cheers,
Stan H.
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